206088440 has 32 divisors (see below), whose sum is σ = 488106000. Its totient is φ = 78096384.

The previous prime is 206088401. The next prime is 206088481. The reversal of 206088440 is 44880602.

It is a junction number, because it is equal to n+sod(n) for n = 206088397 and 206088406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134825 + ... + 136344.

Almost surely, 2^206088440 is an apocalyptic number.

206088440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206088440 is an abundant number, since it is smaller than the sum of its proper divisors (282017560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206088440 is a wasteful number, since it uses less digits than its factorization.

206088440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271199 (or 271195 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 206088440 is about 14355.7807171885. The cubic root of 206088440 is about 590.6785642937.

The spelling of 206088440 in words is "two hundred six million, eighty-eight thousand, four hundred forty".